Alfalfa-grinder.



Patented Jan. 5, 1909.

2 SHEETS-SHEET 1.

@nvcwfot .Th 'eoclore P T. PONSAR.

ALFALFA GRINDER, APPLIOATION rnnn nov.21,19oe.

Patented Jan. 5, 1909.

2 SHEETS-SHEET 2.

Theodore Rvnsar; Quwutoz.

' ;-fectively: cuttingand breaking. up the stems g a'nd tougherportionsof the material, means for. quickly removing the material from thegrinding-cylinders as soon as itis reduced to .partiiclesgofthedesiredsize, thereby av0idmgundue pulverization of the leaves andmore-fragile ortions ofthe material, means- .for. keeping t e materialwithin the grinding cylinders constantly in the pathof greatestQWentingclogging' of the cylinders by too -.-rap1d..feed1ng=-of moistand tough materials inclosed space between the same and the'toothedconcave plates and perforated metal screens.

4 ncisor-3,1301".

-,T0 all-whom it may concern Be it ,knownthatl, Tnnononn -',@itiZGn.Qfthe United States, and a resident of ;Sou.th Omaha, inthecounty ofDouglas and .Stateiof N ebraska, have invented certain new* anduseful.Improvements in Alfalfa- Grinders, of. which-the following is aspecification.v :7. 1

ingalfalfa clover or other foliage crops, and -.-1-t 1s the-QbJectthereof to provide in a mathe feed. chute 17, as shown.

PONSAR, a

My invention relates to machines for grindchine of this classmeans forquickly and efdestructiye action, automat1c vents for pref nppljcationmeanness Serial n6. i i i was QM HA IW BM KA Ilett er a latentl with asuitable'exllaust fan..." The upper portions of the casing are hinged tothe lower portions and may be swung outwardly, as'indicated by thedotted lines in Fig. 1, to give access to the concave plates andscreens.

Secured to the shafts '3 and 4, adjacent-the side plates 1, arethespider wheels 32. Said wheels areprovided on, theirouter rims withslotted radiallyextending lugs 30,. to which der bars 21 are vadjustablysecured by the screws22 passing" through theslots in the lugs. On theends of the shafts 3 and 4. are the belt ulleys 23 by which thecylinderh are driven, oth cylinders being arranged :to evolve in thesame direction, as-indicateclj by the arrows A,A in Fig.1..

the longitudinally extending toothed cylin- I The teeth on the barsxofeach cylinder -are so-,arranged as; to

pass between the teeth onthe: bars of the the cylinders. The teeth onthe concave plates are arranged, to extend between the fifomthe machineany'pieces of metal or other dent fedinto the machine, and certain othernovel constructions as will .be more fully setforth hereinafter. a p IConstructions embodying my invention are shown in the accompanyingdrawings in which Figure 1 is a longitudinal sectional view of g themechanism, Fig. 2 is a sec tional plan view 1 ofthesame, Fig. 3 is apartial side elevation l thereof, and Fig. 4 is a detail section of aportion of one of the perforated metal screens.

In the drawings 1, 1 represent suitable side plates having formedtherein bearings 2 for the cylinder shafts 3 and 4. The toothed concaveplates 5, 6, 7, S and 9, and the perforated metal screens 10, 11, 12,13, 14 and 1'5 aresecured between the side plates 1, be-

At the lower side of the machine 1 the said casing 18 merges into theexhaust chute 19 which is extended to and connected.

other cylinder at the arcs of,intersection of teeth of'the cylinderbars, andatthe ends of the cylinders toothed rings 24 are'secured to.

theslde plates. 1, the teeth on said rings extending into notches in theends of the cylinder bars, as shown in Fig. 2.

secured the fan blades 25, the, same being so.

; arranged that the forward faces thereof lie in the same planes'as thefaces of the corresponding cylinder blades. When the mac ine is 111operation these blades 25, together with the cylinder blades, serve toReepthe m'ateria'ls thrown outward from the centers of the cylinders,thus bringing said materials against the screens and into theinterengag- 'ing teeth of the cylinder blades and concave plates. Thesaid blades also assist in cans mg currents of air to be drawn into thecentral parts of the cylinders through the openings 26 in the side lates1, and thence driven outwardly througi the screens and the erforationsin the concave plates, the sai air currents carrying the materialthrough the screens and plates as soon as it is reduced to .3 particlessmall enough to pass 'throughthe 5 perforations in the same.

One of the c *linders is of greater length than the other, the ends ofthe longer cy der extending into the projecting ortions 27 of the sideplates 1, as shown inig. 2. In

On the radial arms of the spider wheels are the side of each of saidpro'ecting portions 27 is an opening over which ts a gate 28 which ishinged above the openlng and provlded with a weight 29, arranged asshown in Figs.

2 and 3, the said weight normally holding the gate in closed position.When the machine is overloaded the excess of material tends to collectaround the ends of the longer -nel 30 which is extended through the sideplates 1, the openings to the channels being closed by plates 31, asshown in Fig. 3. The said channels are for thepurpose of collect- I ingany particles of metal, rock or other refractory materials which maybeby accident fed into. the machine. Any of such materials which collectin the channels may be readilyremoved by taking off the plates 31 oneach side of the machine and pushing a 7 rod through the channel fromendto end.

material passing endwise through the perforations of the screens Iprefer to corrugate' To lessen the probability of stems of the orroughen the inside of said perforations. The] most convenient way inwhich this cor- ,rugation may be effected is by threading theperforations in the screens, as shown by the enlarged detail viewthereof in Fig. 4.-

cylinder casings comprising alternately ar- Now, having described myinvention, what I claim and desire to secure by Letters Pat-.

entis:

1.. In a machine of the class described,

' v ranged screens and toothed! concave plates,

toothed cylinders revoluble in intersecting arcs,.;the, teeth of eachcylinder being ar-.

ranged to interengage with cutting action with the teeth of the [concaveplates and of the other cylinder, an inclosed exhaustspace surroundingthe screens and concave plates, and fan blades carried by the cylindersfor the purpose set forth.

'2. In a machine of the class described, toothed cylinders 'revoluble inintersecting arcs, a perforate casing surrounding said cylinders,- saidcasing having teeth interens gaging with cutting action with the teethof the cylinders, an inclosed exhaust s ace surrounding said perforatecasing, sai exhaust space having an outlet for removal of the materialspassing thereinto through theperforate cylinder casing, air inletopenings adjacent the axes of the cylinders,and means for drawing airinto said openin s and driving the same out through the perforatecylinder casing.

3. In a machine of the class described, cylinder casings comprisingperforated metal screens and toothed concave plates, the eri forationsof the screensbeingcorrugate or roughened as described, cylindersrevoluble within the casings, toothed bars carriedby the cylinders andadj'ustably secured thereto, the teethon the said bars passing withcutting action through the teeth of the concave plates and adjacent theinner surfaces of the screens, and fan blades on the cylinders ad-'jacelrlit the toothed bars for the purposes set fort In testimonywhereof I have hereunto subscribed my name in the presence oftwo-witnesses.

' THEODORE PONSAR'. Witnesses:

D. O. BARNELL, A. J .LOWRY.

